I didn't make it!
I'm new to CoH and I looked on this forum and noone really talks about rank. What does it do for you is it the same as AoE3 where you get cards and get upgrades your army and new troops. Or does it not really do anything and its for show.
Its just for show.
Show and bragging rights.
Bit like a golf handicap - a few people might care what it is but its more a personal thing. You want to improve it so you come back for more - makes it addictive really. Used for ranked matches so mostly you get a reasonably well matched game.